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Finding the Fourth Proportional to 792.56, 1,092.84 and 530.48

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Solution

The fourth proportional to 792.56, 1,092.84 and 530.48 is: 731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.56 : 1,092.84 = 530.48 : x
  2. Step 2: Convert to fraction form
    792.56/1,092.84 = 530.48/x
  3. Step 3: Cross multiply
    792.56x = 1,092.84 × 530.48
  4. Step 4: Simplify right side
    792.56x = 579,729.76
  5. Step 5: Solve for x
    x = 579,729.76/792.56
  6. Step 6: Final answer
    x = 731.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.